CN115400512A - Anesthetic gas recovery method and device - Google Patents
Anesthetic gas recovery method and device Download PDFInfo
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- CN115400512A CN115400512A CN202211014316.7A CN202211014316A CN115400512A CN 115400512 A CN115400512 A CN 115400512A CN 202211014316 A CN202211014316 A CN 202211014316A CN 115400512 A CN115400512 A CN 115400512A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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Abstract
The invention discloses an anesthetic gas recovery method and device, relates to the technical field of anesthetic gas recovery, and aims to solve the problems that the existing anesthetic gas recovery effect is poor, the recovered anesthetic gas is not clean enough, and the like. The invention realizes the arrangement and purification of the anesthetic gas in the recovery process of the anesthetic gas by carrying out multiple filtration on the air doped with the anesthetic gas, has higher recovery efficiency of the anesthetic gas, realizes thorough recovery and rapid recovery by utilizing the sealing structure and the negative pressure structure, and has higher commercial value, and the recovered anesthetic gas can be put into use again.
Description
Technical Field
The invention relates to the technical field of anesthetic gas recovery, in particular to a method and a device for recovering anesthetic gas.
Background
Anesthetic gas, also called inhalation anesthetic, is a volatile liquid or gas, enters a human body through a respiratory tract to play a role of anesthesia from shallow to deep, has the characteristics of strong anesthetic function, high controllability and the like, and has a leading role in general anesthesia and maintenance of anesthesia, while in the use process of the anesthetic gas, a part of anesthetic gas is remained in a room after the anesthetic gas is used, and the anesthetic gas must be recovered, otherwise, the operation is influenced.
Disclosure of Invention
Objects of the invention
In order to solve the technical problems in the background art, the invention provides an anesthetic gas recovery method and device, the anesthetic gas can be tidied and purified in the recovery process of the anesthetic gas by carrying out multiple filtration on the air doped with the anesthetic gas, the recovery efficiency of the anesthetic gas is higher, the recovery is thorough and rapid by utilizing a sealing structure and a negative pressure structure, and the anesthetic gas has higher commercial value, and the recovered anesthetic gas can be put into use again.
(II) technical scheme
The invention provides an anesthetic gas recovery method and device, which comprises a base, wherein a filter bin is arranged on the left side of the top surface of the base, a sealing cover is arranged on the top surface of the filter bin, a negative pressure tank is arranged on the top surface of the sealing cover, a recovery tank shell is arranged on the top surface of the negative pressure tank, a filter cabin is arranged inside the recovery tank shell, a filter disc is arranged inside the filter cabin, a second connecting pipe penetrating into the negative pressure tank is fixedly connected to an opening at the bottom of the filter cabin, a negative pressure structure is arranged inside the negative pressure tank, a drainage pipe penetrating into the filter bin is sleeved inside the sealing cover, and a purified solution is arranged inside the filter bin.
As a preferred scheme of the present invention, the negative pressure structure includes six fixing rods with equal length, one end of each fixing rod, which is close to each other, is fixedly connected with a driving motor, an output end of the driving motor is fixedly connected with a rotating shaft through a coupler, two sets of fan blades are arranged on an outer ring of the rotating shaft, the fan blades are driven by rotation of the rotating shaft, so as to generate a negative pressure effect inside the negative pressure tank, and further, air doped with anesthetic gas is pumped into the negative pressure tank.
As a preferred scheme of the invention, a plurality of groups of circular holes arranged in an annular array are formed around the outer ring of the recovery tank shell, and a plurality of groups of through holes arranged in an annular array are formed around the outer ring of the filter cabin.
As a preferable scheme of the invention, the sealing cover is provided with a sealing ring around the outer ring positioned in the filtering bin, the length of the drainage tube extending into the filtering bin is 2/3 or 1/2 of the vertical length of the filtering bin, and the length of the drainage tube extending into the filtering bin accounts for 2/3 or 1/2 of the vertical length of the filtering bin, so that air can be fully contacted with the purified solution in the filtering bin.
According to a preferable scheme of the invention, the right side of the top surface of the base is provided with three supporting legs which are arranged in an annular array, the top ends of the supporting legs are fixedly connected with a positioning disc, the top of the positioning disc is provided with an exhaust fan, and an air inlet end sleeve of the exhaust fan is provided with a bent pipe penetrating through the positioning disc.
As a preferable scheme of the invention, one end of the elbow pipe, which is far away from the exhaust fan, penetrates into the interior of the filter bin, and the elbow pipe is positioned at a position more than 2/3 of the interior of the filter bin.
As a preferable scheme of the invention, a collecting tank is arranged at the top of the exhaust fan, a valve is arranged at the top of the collecting tank, and a first connecting pipe is fixedly connected between the bottom surface of the collecting tank and the air outlet end of the exhaust fan.
According to a preferable scheme of the invention, the inner walls of two sides of the collecting tank are provided with pot-shaped bins, cotton is prevented from being in the middle of the inner cavities of the pot-shaped bins, the bottom opening of each pot-shaped bin is fixedly connected with a through hole filtering circular plate, the surface of each through hole filtering circular plate is provided with a plurality of fine holes, and the vertical cross sections of the pot-shaped bins are gourd-shaped.
Compared with the prior art, the technical scheme of the invention has the following beneficial technical effects:
1. the anesthesia gas recovery device provided by the invention has the advantages that the negative pressure structure in the negative pressure tank is started to work by installing the structures such as the negative pressure tank, the rotating shaft is rotated at a high speed by the output end of the driving motor through the coupler, meanwhile, the two groups of sheet supply fan blades on the outer ring of the rotating shaft are driven to rotate by the rotating shaft, the negative pressure effect is caused in the negative pressure tank, the suction force generated by the fan blades flows from top to bottom, after the negative pressure in the negative pressure tank is generated, the anesthesia gas and the air are pumped into the shell of the recovery tank through the circular holes on the outer ring of the shell of the recovery tank and the air circulation, under the continuous action of the negative pressure in the negative pressure tank, the air is forced to enter the interior of the filtering cabin through the pores around the filtering cabin, the pumped air circulates for a circle on the filtering sheet, and meanwhile, the air doped with the anesthesia gas is primarily filtered by means of the adsorption force of the filtering sheet.
2. According to the invention, by installing structures such as a drainage tube and a filter bin, filtered air enters the interior of a negative pressure tank 8 under the action of negative pressure of a negative pressure structure, the air quickly enters the interior of the filter bin 10 through the drainage tube 22, the air containing anesthetic gas is contacted with a purification solution in the interior of the filter bin 10 and purified, the gas accumulated in the upper space of the filter bin 10 in the interior of the filter bin 10 is pumped away by virtue of the suction force of an exhaust fan 4 and guided to the kettle-shaped bin 12 under the guiding of the bent tube 11, the kettle-shaped bin 12 further filters the anesthetic gas by virtue of the round hole on the through hole filtering circular plate 13, and then the gas overflows into the interior of the collection tank 5 along the tip end of the kettle-shaped bin 12 under the secondary filtration of cotton in the interior of the kettle-shaped bin 12, and the release and secondary collection work of the anesthetic gas is realized by virtue of the valve 6 at the top of the collection tank 5.
In conclusion, the invention realizes the arrangement and purification of the anesthetic gas in the recovery process of the anesthetic gas by performing multiple filtration on the air doped with the anesthetic gas, has higher recovery efficiency of the anesthetic gas, realizes thorough recovery and rapid recovery by using the sealing structure and the negative pressure structure, and has higher commercial value, and the recovered anesthetic gas can be put into use again.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of the anesthetic gas recovery method and apparatus according to the present invention.
FIG. 2 is a schematic cross-sectional view of a collecting tank of the anesthetic gas recovery method and apparatus of the present invention.
Fig. 3 is a schematic cross-sectional structural view of a recovery tank housing of the anesthetic gas recovery method and apparatus according to the present invention.
Fig. 4 is a schematic cross-sectional structural view of a negative pressure tank of the anesthetic gas recovery method and apparatus according to the present invention.
Fig. 5 is a schematic cross-sectional structural view of a filter chamber of the anesthetic gas recovery method and apparatus according to the present invention.
Fig. 6 is a schematic view of a part a of fig. 3 showing an enlarged structure of the anesthetic gas recovery method and apparatus according to the present invention.
Reference numerals: 1. a base; 2. supporting legs; 3. positioning the disc; 4. an exhaust fan; 5. a collection tank; 6. a valve; 7. a recovery tank housing; 8. a negative pressure tank; 9. a sealing cover; 10. a filtering bin; 11. bending the pipe; 12. a kettle-shaped bin; 13. a through hole filtering circular plate; 14. a first connecting pipe; 15. a circular hole; 16. a second connecting pipe; 17. a filter disc; 18. a rotating shaft; 19. a fan blade; 20. a drive motor; 21. fixing the rod; 22. a drainage tube; 23. a seal ring; 24. and a filter cabin.
Detailed Description
The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses. It should be understood that throughout the drawings, identical or similar reference numerals indicate identical or similar parts and features. The drawings are only schematic representations of the concepts and principles of the embodiments of the disclosure, and do not necessarily show specific dimensions or proportions of the various embodiments of the disclosure. Certain features that are part of a particular figure may be exaggerated in order to illustrate relevant details or structures of embodiments of the present disclosure.
In the description of the present application, unless explicitly stated or limited otherwise, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless specified or indicated otherwise; the terms "connected" and "fixed" are used broadly, and for example, "connected" may be a fixed connection or a detachable connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", and the like used in the embodiments of the present application are described with reference to the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.
The first embodiment is as follows: referring to fig. 1-6, the anesthetic gas recovery device comprises a base 1, and is characterized in that a filter bin 10 is disposed on the left side of the top surface of the base 1, a seal cover 9 is disposed on the top surface of the filter bin 10, a negative pressure tank 8 is disposed on the top surface of the seal cover 9, a recovery tank housing 7 is disposed on the top surface of the negative pressure tank 8, a filter cabin 24 is disposed inside the recovery tank housing 7, a filter sheet 17 is disposed inside the filter cabin 24, a second connecting pipe 16 penetrating into the negative pressure tank 8 is fixedly connected to an opening at the bottom of the filter cabin 24, a negative pressure structure is disposed inside the negative pressure tank 8, a drainage pipe 22 penetrating into the filter bin 10 is sleeved inside the seal cover 9, a purified solution is disposed inside the filter bin 10, filtered air enters the inside the negative pressure tank 8 under the negative pressure effect of the negative pressure structure, and enters the inside the filter bin 10 through the drainage pipe 22 under the effect of a fan blade 19, and the air containing anesthetic gas contacts and is purified with the purified solution in the filter bin 10, and the seal cover 9 keeps the air from escaping.
The second embodiment: referring to fig. 1-6, on the basis of the first embodiment, the anesthetic gas recovery device comprises six fixing rods 21 with equal length, one end of each fixing rod 21 close to each other is fixedly connected with a driving motor 20, the output end of the driving motor 20 is fixedly connected with a rotating shaft 18 through a coupler, two sets of fan blades 19 are arranged on the outer ring of the rotating shaft 18, the negative pressure structure in the negative pressure tank 8 is started to work, then the output end of the driving motor 20 rotates the rotating shaft 18 through the coupler, at the same time, two sets of 12 fan blades 19 on the outer ring of the rotating shaft 18 start to rotate under the driving of the rotating shaft 18, and a negative pressure effect is caused in the negative pressure tank 8, the suction force generated by the fan blades 19 flows from top to bottom, and a plurality of circular holes 15 arranged in an annular array are arranged on the periphery of the outer ring of the recovery tank shell 7, after the negative pressure in the negative pressure tank 8 is generated, anesthetic gas and air are pumped into the interior of the recovery tank shell 7 together through 40-50 circular holes 15 on the outer ring of the recovery tank shell 7 and air circulation, and under the continuous action of the negative pressure in the negative pressure tank 8, the air is forced to enter the interior of the filter cabin 24 through the pores on the periphery of the filter cabin 24, the pumped air circulates on the filter sheet 17 for a circle, meanwhile, the air doped with the anesthetic gas is primarily filtered by virtue of the adsorption force of the filter sheet 17, a plurality of groups of through holes arranged in an annular array are formed in the periphery of the outer ring of the filter cabin 24, the sealing cover 9 is provided with a sealing ring 23 on the periphery of the outer ring in the filter cabin 10, and the length of the drainage tube 22 extending into the filter cabin 10 is 2/3 or 1/2 of the vertical length of the filter cabin 10.
Example two: referring to fig. 1-6, on the basis of the second embodiment, in the anesthetic gas recovery device, the right side of the top surface of a base 1 is provided with three supporting legs 2 arranged in an annular array, the top ends of the supporting legs 2 are fixedly connected with a positioning disc 3, the top of the positioning disc 3 is provided with an exhaust fan 4, an air inlet end of the exhaust fan 4 is sleeved with an elbow 11 penetrating through the positioning disc 3, one end of the elbow 11 far away from the exhaust fan 4 penetrates into the interior of a filtering bin 10, the elbow 11 is positioned at a position more than 2/3 of the interior of the filtering bin 10, the top of the exhaust fan 4 is provided with a collecting tank 5, the top of the collecting tank 5 is provided with a valve 6, the first connecting pipe 14 of fixedly connected with between the bottom surface of collection tank 5 and the air-out end of air exhauster 4, the both sides inner wall of collection tank 5 is provided with kettle type storehouse 12, kettle type storehouse 12 inner chamber middle part prevents to have the cotton, the bottom opening part fixedly connected with through-hole of kettle type storehouse 12 filters plectane 13, and kettle type storehouse 12 utilizes the through-hole to filter the round hole on plectane 13 and further filters anesthetic gas, then under the secondary filtration of the inside cotton in kettle type storehouse 12, gaseous will be along the tip department of kettle type storehouse 12 spill over to the inside of collection tank 5, a plurality of pore has been seted up on the surface that the plectane 13 was filtered to the through-hole, the perpendicular cross-section in kettle type storehouse 12 is the calabash form.
The anesthetic gas recovery device provided by the invention also has the following working principle and specific description:
firstly, after releasing anesthetic gas, a target object is anesthetized, the anesthetic gas spreading in the air is doped in the air, at the moment, a negative pressure structure in the negative pressure tank 8 is started to work, then the output end of a driving motor 20 rotates a rotating shaft 18 through a coupler to rotate at a high speed, meanwhile, two groups of 12 fan blades 19 on the outer ring of the rotating shaft 18 start to rotate under the driving of the rotating shaft 18, a negative pressure effect is caused in the negative pressure tank 8, and the suction force generated by the fan blades 19 flows from top to bottom;
secondly, after the negative pressure in the negative pressure tank 8 is generated, the anesthetic gas and the air are pumped into the interior of the recovery tank shell 7 together through the circulation of 40-50 round holes 15 on the outer ring of the recovery tank shell 7 and the air is forced to enter the interior of the filter cabin 24 through the pores around the filter cabin 24 under the continuous action of the negative pressure in the negative pressure tank 8, the pumped air circulates on the filter sheet 17 for a circle, meanwhile, the air doped with the anesthetic gas is primarily filtered by virtue of the adsorption force of the filter sheet 17 to remove impurities and floating dust in the air, the filtered air enters the interior of the negative pressure tank 8 under the negative pressure action of the negative pressure structure, the air rapidly enters the interior of the filter cabin 10 through the drainage tube 22 under the action of the fan blades 19, the air containing the anesthetic gas is contacted and purified with the purified solution in the interior of the filter cabin 10, and the sealing cover 9 tightly matched with the filter cabin 10 keeps the air from escaping;
finally, the exhaust fan 4 is started simultaneously, the gas accumulated in the upper space of the filter bin 10 in the filter bin 10 is extracted by the aid of the drawing force of the exhaust fan 4, the gas is discharged to the air outlet end of the exhaust fan 4 under the guiding of the bent pipe 11, then the gas is discharged to the kettle-shaped bin 12 through the first connecting pipe 14 under the action of the exhaust fan 4, the anesthesia gas is further filtered by the aid of the round holes in the through hole filter round plates 13 in the kettle-shaped bin 12, then the gas overflows into the collection tank 5 along the tip of the kettle-shaped bin 12 under the secondary filtering of cotton in the kettle-shaped bin 12, and the anesthesia gas is released and collected again through the valve 6 at the top of the collection tank 5.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. Anesthetic gas recovery unit, including base (1), its characterized in that, the top surface left side of base (1) is provided with filters storehouse (10), the top surface of filtering storehouse (10) is provided with sealed lid (9), the top surface of sealed lid (9) is provided with negative pressure jar (8), the top surface of negative pressure jar (8) is provided with retrieves jar shell (7), the inside of retrieving jar shell (7) is provided with filters cabin (24), the inside of filtering cabin (24) is provided with cassette (17), the bottom opening part fixedly connected with of filtering cabin (24) runs through and gets into inside second connecting pipe (16) of negative pressure jar (8), the inside of negative pressure jar (8) is provided with the negative pressure structure, the inside cover of sealed lid (9) is equipped with and runs through and gets into drainage tube (22) that filter storehouse (10) is inside, the inside of filtering storehouse (10) is provided with purifying solution.
2. The anesthetic gas recovery apparatus according to claim 1, wherein the negative pressure structure comprises six fixing rods (21) with equal length, one end of each fixing rod (21) close to each other is fixedly connected with a driving motor (20), the output end of the driving motor (20) is fixedly connected with a rotating shaft (18) through a coupling, and two sets of fan blades (19) are arranged on the outer ring of the rotating shaft (18).
3. The anesthetic gas recovery device according to claim 1, wherein a plurality of circular holes (15) arranged in an annular array are formed around an outer ring of the recovery tank housing (7), and a plurality of through holes arranged in an annular array are formed around an outer ring of the filter chamber (24).
4. The anesthetic gas recovery apparatus as claimed in claim 1, wherein the sealing cover (9) is provided with a sealing ring (23) around an outer ring inside the filter cartridge (10), and the length of the drainage tube (22) extending into the filter cartridge (10) is 2/3 or 1/2 of the vertical length of the filter cartridge (10).
5. The anesthetic gas recovery device according to claim 1, characterized in that three supporting legs (2) arranged in an annular array are arranged on the right side of the top surface of the base (1), a positioning disc (3) is fixedly connected to the top ends of the supporting legs (2), an exhaust fan (4) is arranged on the top of the positioning disc (3), and an elbow (11) penetrating through the positioning disc (3) is sleeved on the air inlet end of the exhaust fan (4).
6. The anesthetic gas recovery apparatus as claimed in claim 5, characterized in that the end of the elbow (11) remote from the suction fan (4) extends into the interior of the filter cartridge (10), and the elbow (11) is located at a position above 2/3 of the interior of the filter cartridge (10).
7. The anesthetic gas recovery device according to claim 5, characterized in that a collection tank (5) is disposed on the top of the exhaust fan (4), a valve (6) is disposed on the top of the collection tank (5), and a first connection pipe (14) is fixedly connected between the bottom surface of the collection tank (5) and the air outlet end of the exhaust fan (4).
8. The anesthetic gas recovery device according to claim 7, wherein the inner walls of the two sides of the collecting tank (5) are provided with pot-shaped bins (12), cotton is prevented from being in the middle of the inner cavities of the pot-shaped bins (12), a through hole filtering circular plate (13) is fixedly connected to the bottom opening of the pot-shaped bins (12), the surface of the through hole filtering circular plate (13) is provided with a plurality of fine holes, and the vertical cross section of the pot-shaped bins (12) is gourd-shaped.
9. The anesthetic gas recovery apparatus according to any one of claims 1 to 8, further comprising an anesthetic gas recovery method comprising the steps of:
firstly, after releasing anesthetic gas, a target object is anesthetized, the anesthetic gas spreading in the air is doped in the air, at the moment, a negative pressure structure in the negative pressure tank (8) is started to work, then the output end of a driving motor (20) rotates a rotating shaft (18) through a coupler to rotate at a high speed, meanwhile, two groups of fan blades (19) of the blades (12) on the outer ring of the rotating shaft (18) start to rotate under the driving of the rotating shaft (18), a negative pressure effect is caused in the negative pressure tank (8), and the pumping force generated by the fan blades (19) flows from top to bottom;
secondly, after the negative pressure in the negative pressure tank (8) is generated, anesthetic gas and air are pumped into the recovery tank shell (7) together through the circulation of 40-50 round holes (15) on the outer ring of the recovery tank shell (7) and air, under the continuous action of the negative pressure in the negative pressure tank (8), the air is forced to enter the interior of the filter cabin (24) through the pores around the filter cabin (24), the pumped air circulates for a circle on the filter sheet (17), meanwhile, the air doped with the anesthetic gas is primarily filtered by virtue of the adsorption force of the filter sheet (17), impurities and floating dust in the air are removed, the filtered air enters the interior of the negative pressure tank (8) under the negative pressure action of a negative pressure structure, and under the action of the fan blades (19), the air quickly enters the interior of the filter cabin (10) through the drainage tube (22), the air containing the anesthetic gas is in contact with the purification solution in the interior of the filter cabin (10) and is purified, and the air is tightly matched with the filter cabin (10) to prevent the air from escaping;
and finally, simultaneously starting the exhaust fan (4), exhausting the gas accumulated in the upper space of the filter bin (10) in the interior of the filter bin (10) by means of the suction force of the exhaust fan (4), exhausting the gas to the air outlet end of the exhaust fan (4) under the guide of the bent pipe (11), then exhausting the gas to the kettle-shaped bin (12) through the first connecting pipe (14) under the action of the exhaust fan (4), further filtering the anesthetic gas by utilizing the round hole on the through hole filter circular plate (13) in the kettle-shaped bin (12), then filtering the cotton again in the interior of the kettle-shaped bin (12), enabling the gas to overflow to the interior of the collection tank (5) along the tip of the kettle-shaped bin (12), and realizing the release and recollection work of the anesthetic gas through the valve (6) at the top of the collection tank (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211014316.7A CN115400512A (en) | 2022-08-23 | 2022-08-23 | Anesthetic gas recovery method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211014316.7A CN115400512A (en) | 2022-08-23 | 2022-08-23 | Anesthetic gas recovery method and device |
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| CN115400512A true CN115400512A (en) | 2022-11-29 |
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| CN202211014316.7A Pending CN115400512A (en) | 2022-08-23 | 2022-08-23 | Anesthetic gas recovery method and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116901395A (en) * | 2023-07-17 | 2023-10-20 | 东莞金熙特高分子材料实业有限公司 | But heat recovery's extruder for PA material |
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2022
- 2022-08-23 CN CN202211014316.7A patent/CN115400512A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116901395A (en) * | 2023-07-17 | 2023-10-20 | 东莞金熙特高分子材料实业有限公司 | But heat recovery's extruder for PA material |
| CN116901395B (en) * | 2023-07-17 | 2024-03-08 | 东莞金熙特高分子材料实业有限公司 | But heat recovery's extruder for PA material |
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